org.apache.commons.math3.fitting.leastsquares

Class LeastSquaresFactory.LocalValueAndJacobianFunction

java.lang.Object

org.apache.commons.math3.fitting.leastsquares.LeastSquaresFactory.LocalValueAndJacobianFunction

All Implemented Interfaces:

MultivariateJacobianFunction, ValueAndJacobianFunction

Enclosing class:

LeastSquaresFactory

private static class LeastSquaresFactory.LocalValueAndJacobianFunction
extends java.lang.Object
implements ValueAndJacobianFunction

Combine a MultivariateVectorFunction with a MultivariateMatrixFunction to produce a MultivariateJacobianFunction.

Field Summary

Fields

Modifier and Type	Field and Description
private MultivariateMatrixFunction	jacobian Model's Jacobian.
private MultivariateVectorFunction	value Model.

Constructor Summary

Constructors

Constructor and Description
LeastSquaresFactory.LocalValueAndJacobianFunction(MultivariateVectorFunction value, MultivariateMatrixFunction jacobian)

Method Summary

Methods

Modifier and Type	Method and Description
RealMatrix	computeJacobian(double[] params) Compute the Jacobian.
RealVector	computeValue(double[] params) Compute the value.
Pair<RealVector,RealMatrix>	value(RealVector point) Compute the function value and its Jacobian.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

value

private final MultivariateVectorFunction value

Model.

jacobian

private final MultivariateMatrixFunction jacobian

Model's Jacobian.

Constructor Detail

LeastSquaresFactory.LocalValueAndJacobianFunction

LeastSquaresFactory.LocalValueAndJacobianFunction(MultivariateVectorFunction value,
                                                 MultivariateMatrixFunction jacobian)

Parameters:

value - Model function.

jacobian - Model's Jacobian function.

Method Detail

value

public Pair<RealVector,RealMatrix> value(RealVector point)

Compute the function value and its Jacobian.

Specified by:

value in interface MultivariateJacobianFunction

Parameters:

point - the abscissae

Returns:

the values and their Jacobian of this vector valued function.

computeValue

public RealVector computeValue(double[] params)

Compute the value.

Specified by:

computeValue in interface ValueAndJacobianFunction

Parameters:

params - Point.

Returns:

the value at the given point.

computeJacobian

public RealMatrix computeJacobian(double[] params)

Compute the Jacobian.

Specified by:

computeJacobian in interface ValueAndJacobianFunction

Parameters:

params - Point.

Returns:

the Jacobian at the given point.